Finding the Third Proportional to 13,215.02 and 20,453.77

Step by Step Solution

1. Step 1: Write the proportion equation
   13,215.02 : 20,453.77 = 20,453.77 : x
2. Step 2: Convert to fraction form
   13,215.02/20,453.77 = 20,453.77/x
3. Step 3: Cross multiply
   13,215.02x = 20,453.77 × 20,453.77
4. Step 4: Simplify right side
   13,215.02x = 418,356,528.24
5. Step 5: Solve for x
   x = 418,356,528.24/13,215.02
6. Step 6: Final answer
   x = 31,657.65